Hydraulic accumulator



Jan. 15, 1935. R. w. DINZL 1,987,609

HYDRAULIC ACCUMULATOR Filed Jan. 11, 1952 5 SheetsSheet 1 IMVENTOE:

- Richard W. Dinzl,

Jan. 15, 1935. R. w; DINZL 1,987,609

HYDRAULI C ACCUMULATOR Filed Jan. 11. 1932 3 Sheets-Sheet 2 EicHcu-J W. Dinil,

- INVENTOE= Jan. 15, 1935. R w; DINZL 1,987,609

HYDRAULIC ACCUMULATOR Filed Jan. 11, 1932 3 Sheets-Sheet 3 IMVENTOR:

Eichc-rd woml,

Patented Jan. 15, 1935 a. 1,987,609

PATENT OFF-ICE n-YnR uLio ioc-miuuLirrmt Richard Dinzl; Drexe lfHill, Pai, assignor "to Baldwin-Southwark oqrpbmuon, Eddystone, V Pa.-, a, corporation of Pennsylvania I Applicationijanuary .1-1, 1932, "serial No. i 586,005 5 claims, (ol ros -222) My invention relates to accumulators suchas arranged'in-what maybe termed unitsiWhich are-employed with hydraulically operated vmaare detachably connected to saidcross-head; ohln'eryfor storingor accumulating'liquid,usually -=The columns 16 may be supportedby or ane waiter; =undera head which may be'subsequently chorediniasuitable sub-base 17, and the cylinder 5 translated into pressure and delivered to,,such l mayzbesupported by a base section 103 mountmschinerywhen maximum demand exceedsthe ed upon the sub-base 17. As indicated in the pumping capacity supplying such machinery or drawings, four columns are provided, and the when for any reason the pumping capacity recross-head is guided in its movement with respect quires regulation to maintain the required to the same by the rollers 14, which ride upon said demand. columns. The number of these elements may be 10 fine -'objeetof invention is to provide an altered, as may be desired. accumulator with simplegand emci'ent means for Depending from the cross-head 14 are a series varying the loadingof the same. of bolts 20, which are connected at their lower A further -objectwof'my' invention is to provide ends to an annular plate or pl'atform 21 Which 1'5 an accumulator havingvariable loading means may form the .bottom ofa cylindri al ank 22 with means -whereby;portions:ofsuch'load may disposed at the upper portion of the accumulator be readilydisplaced whenr-it is-desiredto vary the and which; when 'emp1oyed,'may be filled with a pressureiat'whichtheliquid is delivered. Suitable liquid, or solid material in the'form of v sd further object of my invention is to provide 1"S D,;SB d; Thistank, When filled 2 an aocumulator with detachable 'or'displaceable partially filled, may p v d a y pa t f the 0 lolding means and,- as ociatedmech ni m wh re-'- loading of the accumulator, and in some instances by variations in the loading, and consequently in ay 'be -O t a o h r as hereinafter d8- thedelivered ressure maybe-controlled at a diss ri h plat r platf rm 21, wh ma time fr m-th zac um i t f form the bottom of this tank, when such structure it "lhessand othepobjects o my invntion;wi1l is employed as a-part of'the accumulator, is pref- 25 be reudilyja par nt fr the following descriperably-circular and extends outwardly to a point tiomand fiom'the'aocompanying drawings1.i11us adjacent to, the columns 16. This plate or plat tfatiflglfihe Iem]; di i; {of y inv nti n -a d in form carries a series of vertically depending bolts which; '5 i I V orlrods 23; such rods being fixed to said plate'or '1 lgure 1 is an "elevation 'of myimprovedacplatform 21 and moving with it and hence any (stimulator. movement imparted to'the ram will carrysaid fink-[2&5 aplan vibwiofthe S mi, platc'or platform 21 and the depending rods '23 -Figi 3 1s a vertioalvsection :taken on the. line therewithg HI III Fig-VZ. vBetween'the plate 21 and a series of pedestals N 3 a etmnal plan taken a "th -111 24 or other supports mounted on thesub-base 17,

:Flg. 3, and li'provide a'series of annular plates-or platforms, z'FisiB ands arermgmentaryviewsiuustraiing at'za' 2 and 5 and m u d upo dg'mgg f myimv m n the J'BSDECUIVB plates I arrange a plurality'of set's 72' i of detachable weights, indicated at 26, 26 and 0 q- ?.i 26 'I'hese weights may be segmental in shape wi m 31V ert-ica; nd central-1y dlsandmay bearranged to be removable and re" p1aceable,*as may be desired, to decrease or augi I ment the load of-the accumulator, as hereinafter described. i

The several depending rods 23 pass through mounte -a vertically 'm'ovabler'am 12. Theupper u end of thecylinderlispacked in'the usual manner,

at il-mil h c p 'cfi vertically arranged openings 27 provided in the and the ram l2 carries at its upper end-a crosscircular plates platforms 25, and 25b a ad of u t form Whichmay carry rollers ja'cent to the marginal edges of the same, and said fi flmd o e n Vertically m d rods 23 may be associated or dissociated with 60 l6rwhioh maybe-in the form of commercial these plates or'platforms in the following man- I-beams ner. Underlying the rims'or margins of each of -Theram 12 supports the-loading of the accumuthe plates or platforms 25, et seq., are 'ring'memlator throughconnection with the cross-head 14 bers 28, 28 and 28*, respectively; such ring memend in theipresent instance this loading is sechers being supported in place against the undertionalinieharacter; that-isto say apartof it is side of the plates or lplatforms 25, 25 and25 by 5 means of flanged members 30, which may be secured at spaced intervals to said platforms. The ring members 28, et seq., have limited rotative movement with respect to the plates or platforms 25, et seq., and the flanged supporting members 30 carried thereby.

The several depending rods 23 pass through these ring members 28, et seq.; the latter being apertured at 31 for this purpose. The rods 23 are provided with a plurality of shouldered portions 23 underlying the several ring members 28, et seq., carried by the respective plates or platforms 25, et seq., whereby the latter may be supported. The openings 31 in the ring members elongated,

through which the rods 23 pass are as clearly shown in Figs. 4, 5 and 6, and are of different dimensions between their end walls so that when said ring members 28, et seq., are in one position with respect to the rods, said ring,

members are supported by the shouldered portions 23 of said rods, while when said ring members are in another positiomwith respect to the rods 23, the shouldered portions of the latter may pass through the enlarged portions of the openings 31 in said ring members and through the openings 27 provided in the circular plates 25, 25 and 25 adjacent to the marginal-edges thereof; This condition is clearly illustrated inFigs. 5 and 6; Fig. 5 showing the narrow portion 31 of an opening 31 in registry with a rod'23 withthe shouldered portion 23 of the latter underlying the ring member, while Fig. 6 shows the changed position of the ring member, bringing the enlarged portion 31 .of the opening 31 into registry with the shouldered portion of the rod 23; such portion 31 of said opening being sufficiently large to permit the shouldered portion 23 of the rod 23 to pass through the same. It will be understood therefore that when the several ring members, 28, et seq., occupy the position indicated by Figs. 4 and 5, they and the superposed circular platforms 25, et seq., will be supported by the shouldered portions of the rods and upon fluid pressure being admitted to the cylinder 10 via the pipe 11, the ram will carry up the several annular platforms 25, 25 and 25 suspended from the platform 21, and the several sets of superposed weights 26, 26 and 26 a It may be desirable at times, depending upon the character of work performed by the hydraulic machinery associated with-the accumulator, to vary the load and to omit from the loading one or more of the circular platforms 25, 25, or 25 and the superposed weights carried thereby. As may be understood, these platforms must be released from the bottom upward. If therefore it is desired to omit the bottom platform 25 and the load imposed by its superposed weights 26", the bottom ringmember 28 is given sufficient rotative movement to bring the enlarged portions 31 of the openings 31 of the same into registry with the rods 23 and the shoulders 23 carried by the same, as indicated by Fig. 6, and upon movement being imparted to the ram the upper part-of the structure will be moved and the lower ends of the rods 23 and the shouldered portions thereof will pass through said ring 28 and through the openings 27 in the margin of the. platform 25 leaving the latter behind with its superposed weights 26. Each plate or platform may be released in a similar manner and, if desired, the entire loading of the accumulator may be reduced to such load as may be provided by the tank 22 and its contents, when employed, or any desired portion thereof.

mechanism, oreven moved manually, I prefer to move them mechanically, and to provide that such movingmeans may be under the control of accumulator. For this purpose I may provide the mechanism shown generally in Figs. 1 and 4, comprising a series of reversing motors 35, each mounted upon one of the plates or platforms 25,

25 and 25 and operatively connectedtosuitable reduction gearing diagrammatically indicated-at 3.6; eachofsaid reduction gearing elements driving a shaft 37, carrying a pinion 38, meshing with a rack 39 mounted at-an edge portion of therespective ring members28, 28 and 28 The.op-. eration of the motors may be controlled by suit-: able push buttons disposed'at any point remote from the accumulator, and it will be understood that suitable elastic wiring connections. capable of permitting such' operation will exist between the motors and such. push button controls. By such remote control'parts of or allof theload suspended from the platform 21 may be subtracted from or added to the ram supporting the head 14 at any time theaccumulator structure is in the lowermost position. By having the weights 26, et 'seq.,.in segmental section'sthey may be separately moved as desired to vary the load, when the several plates or platforms 25, et seq., are detached from their operative engagement with the bolts 23.

When it is desired to add the loading afforded by the annular plates or platforms and their superposed weights, the bolts are lowered through the openings 27 adjacent to the marginszof said plates and the enlarged portions31 of the openings 31 in the ring members, and-the :latter are again partially rotated so as to bring the" parts of said ring-members flanking the. smaller portions 31 of the openings 31 thereininto. the position indicated in Figs. 4 and '5; overlying the shouldered portions of said' bolts 23." Itwill be understood, of course, that the control of the motors will be such as to insure againstoverrunning so that the positioning of said ring. members with respect to, the bolts 23, whether to:be engaged by the shouldered'portions-of .the lat; ter, or to permit such shouldered portions to pass through the openings in said ring members, will be in proper registry for the respective con-,- ditions at each operation of said motors; l The platforms 25, 25 and25 are preferably provided with a series of guide rollers 14 a'dapt-' 'edto ride on the I-beamcolumns ldtoinsure proper alignmentduring vertical movement "of the ram. In some instances, the tank 22 may be omitted altogether, and the space shown as occupied by the same may receive castiron or other metal weights supported by the platform 21 and which may be sectional. In other instances all weighting above the platform 21 may be omitted.

Various modifications may be made in the above embodiment of my invention without dean operator situated at some distance from the parting from the spirit and scope thereof as set forth in the appended claims.

I claim:

1. An accumulator comprising a cylindrical fluid-containing structure, a ram therein, a crosshead carried on the upper end of said ram, a plurality of weight-carrying sections beneath said cross-head and surrounding the fluid-containing portion of the accumulator, means for releasably connecting said weight-carrying sections to said cross-head including shouldered rods, means comprising revoluble ring members carried by said sections for effecting the connection or disconnection of said weight-carrying members with respect to said shouldered rods, and motor mechanism controllable from a point remote from said accumulator for actuating said ring members.

2. An accumulator comprising a liquid-containing cylinder, a vertically movable ram mounted therein, a cross-head carrying said ram, a plurality of load-carrying platforms encircling said cylinder, means for directly suspending the upper platform from said cross-head, a plurality of shouldered rods depending from the margin of said upper platform; the platforms below the upper platform being supported by said shouldered rods, ring members carried by said lower platforms and resting upon the shouldered portions of said rods; said ring members being revoluble whereby the loaded platforms may be released from the shouldered rods, and motor means carried by said platforms for moving said ring members.

a 3. The combination with an hydraulic accumulator comprising a liquid-containing cylinder, means for introducing liquid therein and a ram within said cylinder adapted to exert a pressure against the liquid therein, of load supporting means carried by said ram comprising a crosshead connected thereto and held against rotation, a plurality of rods suspended from said crosshead, a platform hung from said rods, a plurality of rods hung from the outer margin of said platform; each of said latter rods having a plurality of shoulders, a plurality of load-carrying platforms having openings through which said rods and shoulders may pass, a ring member having apertures registering with the openings of said load-carrying platforms and through which said rods pass carried by each of said platforms and revolubly movable to a position to be supported by the shouldered rods and to a position permitting passage of said shouldered rods through the ring members and load-carrying platforms; the apertures of said ring members having portions of different dimensions, and means for individually moving said ring members with respect tosaid load-carrying platforms to permit or prevent the passage of said shouldered rods through the apertures of the same.

4. The combination with an hydraulic accumulator comprising a liquid-containing cylinder, means for introducing liquid therein and a ram within said cylinder adapted to exert pressure against the liquid therein, of load supporting means carried by said ram comprising a crosshead connected thereto and held from rotation, a plurality of rods suspended from said crosshead, a platform disposed below said cross-head and supported by said rods, a plurality of shouldered rods hung from said platform, a load-carrying platform below said first-mentioned platform having openings through which said shouldered' bolts may pass, a ring member carried by said latter platform and having apertures registering with the openings thereof; said ring member being revolubly movable to a position to be supported by the shouldered rods and to a position permitting passage of said rods through the ring and platform, and means carried by said platform for moving said ring to permit or prevent the passage of the shouldered rods therethrough.

5. In a structure such as set forth in claim 4, means for moving the ring carried by the loadcarrying platform to permit or prevent the passage of the shouldered rods therethrough, comprising a motor carried by said load-carrying platform, gearing actuated by said motor, and a rack carried by said ring and operatively engaged by said gearing.

RICHARD W. DINZL. 

